Duperreault spearheads new reinsurance start-up Mereo Adam McNestrie September 08, 2023 Twitter LinkedIn Show more sharing options Copy Link URLCopied! Print Twitter LinkedIn Former AIG, Marsh McLennan and Ace CEO Brian Duperreault is targeting a surprise return to the sector as chairman of reinsurance start-up Mereo Advisors, this publication can reveal. To unlock this article Register for a free trial Already a subscriber? Login now